GBA-400+

Name: GBA-400+
Rating: 3.7 (9 reviews)
Author: CASIO COMPUTER CO., LTD.

Utilities

Only for iPhone

Free

9 Ratings
Ages

4+
Years
Category

Utilities
Developer

CASIO COMPUTER CO., LTD.
Language

EN
+ 11 More
Size

24.2
MB

iPhone

●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The GBA-400+ app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. http://world.g-shock.com/ We recommend using GBA-400+ on the following operating systems. Operation is not guaranteed for any operating system not listed below. Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation. ⋅ iOS 12 or later. Applicable Watches: GBA-400 Please refer to the FAQ link below to resolve problems such as being unable to connect or operate the watch. https://support.casio.com/en/support/faqlist.php?cid=009001019 This application uses location information to obtain accurate time. For "Location Service" in iPhone privacy settings, please "Always". If it is not "Always", the application will not work properly. Continued use of GPS running in the background can dramatically decrease battery life.

Ratings & Reviews

3.7

out of 5

9 Ratings

My watch works again!
08/14/2020

kshashidhar
Not sure what changed at Casio, but the new App for this older model works so much better than the last one. I’ve had my GBA-400 for 4 years now and have had countless compliments on it. Having the functionality of the software which I had lost about a year and a half ago is awesome.
My watch works again!
08/14/2020

kshashidhar

Not sure what changed at Casio, but the new App for this older model works so much better than the last one. I’ve had my GBA-400 for 4 years now and have had countless compliments on it. Having the functionality of the software which I had lost about a year and a half ago is awesome.
Not Working
04/28/2025

TheMadCorellian
The app was designed for iOS 11 and hasn’t been updated in at least 4 years (sometime around 2021, give or take some months). As I write this, we’re up to iOS 18.4.1; while the app does launch, it fails to pair every time with the G-Shock “G’Mix” GBA-400 watch. The app will detect the watch when the watch is in setup mode (the mode after the countdown timer) and you hold down the connect button for about a half-second, but it fails to pair every time. Attempts to pair with the watch in any other mode will fail with the app not even getting as far as detecting the watch. I wish I could say I was surprised, but we are talking about a watch that a) requires a separate app when Casio is merging their watches of all brands to use one app, b) only had 11 models, and c) was discontinued in 2015. So if you have a GBA-400, it’s a nice historical artifact but don’t expect the music player controls to work. It will otherwise function the same as its physical counterpart, the GA-400, which shares the same case and strap design and has a nearly-identical digital-analog face right down to the hour and minute hand designs, but has a simpler module with no Bluetooth or music player functions. So as much as I can’t really blame Casio for not updating an orphan app for an orphan watch, the app is useless without an update to run on current versions of iOS - it now deserves zero stars, but one is the minimum.
Not Working
04/28/2025

TheMadCorellian

The app was designed for iOS 11 and hasn’t been updated in at least 4 years (sometime around 2021, give or take some months). As I write this, we’re up to iOS 18.4.1; while the app does launch, it fails to pair every time with the G-Shock “G’Mix” GBA-400 watch. The app will detect the watch when the watch is in setup mode (the mode after the countdown timer) and you hold down the connect button for about a half-second, but it fails to pair every time. Attempts to pair with the watch in any other mode will fail with the app not even getting as far as detecting the watch. I wish I could say I was surprised, but we are talking about a watch that a) requires a separate app when Casio is merging their watches of all brands to use one app, b) only had 11 models, and c) was discontinued in 2015. So if you have a GBA-400, it’s a nice historical artifact but don’t expect the music player controls to work. It will otherwise function the same as its physical counterpart, the GA-400, which shares the same case and strap design and has a nearly-identical digital-analog face right down to the hour and minute hand designs, but has a simpler module with no Bluetooth or music player functions. So as much as I can’t really blame Casio for not updating an orphan app for an orphan watch, the app is useless without an update to run on current versions of iOS - it now deserves zero stars, but one is the minimum.